Evaluate the function for the given values of a and b. Then use the intermediate value theorem to determine which of the statements below is true.a = -2 and b = -1f(x) = 8x3 - 2x + 8
A. f(-2) and f(-1) have the same sign, therefore f does not have a real zero between -2 and -1.
B. f(-2) and f(-1) have opposite signs, therefore f does not have a real zero between -2 and -1.
C. f(-2) and f(-1) have the same sign, therefore the intermediate value theorem cannot be used to determine whether f has a real zero between -2 and -1.
D. f(-2) and f(-1) have opposite signs, therefore f has a real zero between -2 and -1.
Answer: D
You might also like to view...
Solve the problem.If y varies directly as x, and y = 3 when x = 4, find y when x = 28.
A. 
B. 21
C. 
D. 
Simplify the exponential expression using the rules for exponents.
3
A. 
B. 
C. 
D. 
Use a double integral to find the area of the region bounded by the graphs of 
.
?
A. 
B. ?
C. ?
D. ?
E. ?
Write the interval notation for the graph.
A. [-6, -1] B. -6 ? x ? 1 C. [-6, 1] D. (-?, 1)